Belt-tightener for pumps.



M. E. LAYNE A BELT TIGHTENER FOR PUMIPQVS,

MPXHIATION FILE D MAY 1 2. l9l5. I

PatentedMar. 6, 1917.

WITNESSES UNITED STATES PATENT OFFICE;

MAHLOEN n. LAYNE, or HOUSTON, TEXAS.

nELT-r'mHTENEn son PUMPS.

To all whom it may concern 1 lie it known that 1. Maunox 1C. Tana),-

a citizen of the United States. residing at ll'miston, in the county ofllarris and State of 'leXaS. have invented certain new and usefulImprovements in Belt-'ligliteners for 'lumps. as set forth in thefollowing speci- 'lit'ation.

"This invention relates to belt tighteners 1or pumps and 11 hasreference- |)1'H1Iill'll to "the provision o1 a morahleplunp head bymeans of which the vertical axisof the pump shattmg may he varied so asto adjust the lension-olr the drlvln l belt.

The foregoing. together with such other objects :as may hereinafterappear or are incident to my invention, 1 aitain by means of acouslruction which] have illustrated in profound form in theaccompanyingdrzuw ingsr wherein @Fi m-e 1 isa sectional Viewillustratingthe application of my invention to a well pump: and Figure 21s aperspective show ing of-the mo vahle portion of the pump. head. I.

- In order that a hotterunderstmnling may he] had of my invention, Iwill first describe I the form of pump mechanism which lhavie showmanthe drawings in order to afford a specific illustration ofthcapplication of my invention. The well chamber 7 is, 'n-ovide1l T withthe usual well chamher casing 8 whi1'h is closedht the" top by means ofthe. ,pump

head hereinafter to be" described. The pump shown-1s of the; centrifugaltype and com 'n'ises the runner easing 1) wh ch is adjilstably'supported in any desired position in the hottom of the well by means ofthe. p'ipc or discharge cas1ng'10 through which the water is elevated."Within the discharge 1' casingYIO is the line shaft or piiinp shaft 11which turns the runncrhladesj .1n the easing 9, the shaft 11 beinginolosed in a line shaft casing. 12 provided for purposes of lubricatirmand support. At a T'pl'ural ty of points throughout the line shaftcasing the shaft ll 'is provided with bearings 13, the

lo illustrate one of such hearings.

casings being broken away in the drawings The pump head comprisesthc'plate 14 which is bolted to .the foundation structure 15surrounding. the well chamber and provided in its-central portion with aslot 16, and the movahleplate 17 which is provlded with the centrallylocated downwardly projectlng threaded flange 18 into which the upper-I-*' Specification 0! Letters Patent. I

PatentedMnr. 6, 191 7.

Application 111m m 12,101 ser1a1xo.27,49a.

portionof the discharge casing is. thread-.

rd. The plate 17 is providedwith four slots located adjacent the cornersof the plate and. through which thebolts 20 whichfasten V the plate 17to the plate 14 pass. .The plate 14 :21 with which the edges ofthe'plate 17 have lsliding engagement. Adjacent one e111l,1l1e

plate l-Lis provided with the upstanding lug the shank of which isthreaded at its extremity and has threaded enga "ement with a .'milarupstanding lug .24: Tormed on the 1 plate 17. The line shaft 11 isprovided at t1;

top with the usual drivingpullcy 25 around which passes the drivingrhelt26, driven from the engine 27. The engine frame may he bolted to afoundation ,15 in the usual.

.nianner. In ordinar practice, the runner casing 9 is of a diameterusually three 0r more lDCllQS'lQSS than the Internal diameter; of thewell chamber casing.

In order to adplst the tension on the driving belt 26, the operation isas follows: .The'

runner casing 9 may be shifted approxi mately an inch and a halftqeither' side of the center line of the well cas ng with acorresponding increased range of movement at the top of the pumpcasing-at the pump head and it, has been. found 111'; ractice that a'three inch m 'ement to eit center lineoft ell cas head has been 611,111to be-en 1 rely ractical merit which does not interfeiowith thesuccessful driving ofe' pump shaft. The

"is provided with grooved guideways'o'r ribs in which is rotatablymounted a bolt 23 er side of the 1 at the pump" slight.angularinclination' of the 'dischar e casing'is not suflicient to causeany troub e, and it will be apparent that inasmuch as the line shaft.11.'is supported at a plurality of; points throughout the lengthof'thecasingline shaft. and, the whole is self-contained and supportedas a unit, the line shaft will at the pum head will notcause anyfbindingof" the opemtingpartst. A

and to afford a siiflicient re ugee adjusts i not bowpr sag; andtherefore the adjustment .1

It will be clear that the device is sim 1e and easy to manipulate and iscapable of a considerable range of adjustment such as to meet allordinary conditions of service. The device is of considerable advantageinasmuch as it is'a dillieult matter to provide for adjustment ofthe'belt, owing to the weight not only of the engine, but also of thepump apparatus. It will be'obviousthat the force required to move thetop of the pump casing will be crnnparatively small. clear also-that theplate or frame 14 will be securelyv held in .position not only by itsbolts, but also by the downturned annular flange 28 which engages theinner surface of the well casing 8. l

That I claim. is: 1

1. In a well mechanism, the ron'ibination of a pump shaft; a belt fordriving said shaft, and a pump head carrying the shaft, said head beingmovable to adjust the tension on the belt. 4

2. In well mechanism, the combination of a pump shaft. a belt for drivingsaid shaft,

:1 pump head carrying theshaft, and-means for shifting the pump head toadjust the tension on the belt. i

- In \vell inecl'ranism, the combination of a pump shaft; a belt-fordriving said shaft, an engine for driving the belt, and a pump headcarrying the shaft slidablyi mounted for adjustment toward and fromftheengine to adjust the tension on the belt.

4. In well mechanism, the combination of a pump-shaft, a relatii'elyfixed engine, a driving belt, and means at the top of the well forshiftingthew-eriical axis of the shaft to effect adjustment of thetension of the belt.

In well mechanism theeombination of 8. In well mechanism, thecombination of It will be' a pump shaft, a drivin belt therefor, and anadjustable support or the pump shaft, comprising a relatively fixedplate, .a second plate slidably mounted on the fixed plate and andcarrying the pump shaft, and a horiv zontally disposed screw foradjusting the second plate with respect to the fixed plate.-

S. in well mechanism, the combination of a pump shaft, a belt fordriving the shaft, and an adjustable pump-head carrying the shaft andshiftable to vary the tensionoon the driving belt, said pump headcomprising a relatively fixed plate provided with guide ways and havingan aperture of larger dimensions than the shaft, a second plate slidablymounted in the guide ways'and carrying the shaft, means for releasablyfastening the second plate to the fixed plate, and a screw'. carried onthe fixed plate and having threaded engagement with the second plate.

9. 11:, well meehanism,the combination of a pump shaft, a belt fordriving said shaft,

, a pump head carryingthe shaft, a support,-

t'or thepump shaft, comprising a fixed plate and a plate mounted toslide on said fixed plate and carrying the shaft, and a screw for movingthe said sliding plate back and forth. with respect to the fixed plateto vary the tension of the driving belt.

In testimony vvhereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

MAHLON E. LAYNE.

lVitnesses:

' V, B.- Maurine, ERNEST SPENCER.

